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Sunday, June 07, 2020

New Lens Patent 70-300 F4.5-5.6 with In-lens SR

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https://ipforce.jp/patent-jp-A-2020-86357 (in Japanese) A few key highlights are as follows (Google Translated): [Name or name] Rico...

FA*85 Vs D FA*85 Size Comparison

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Tuesday, June 02, 2020

Possible New Optical Designs of the DA*16-50 F2.8 PLM

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I recall the old post by the Pentax Rumors about the various new DA 16-50/2.8 lens designs and patent(s) for improved performance, one o...
Monday, June 01, 2020

Review of 21mm Full Frame Lens Optical Designs

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  Pentax DA 21mm F3.2 (APS-C) Norton 21mm F1.4   Skopar 21mm F4    Ultron 21mm F1.8 Voigtlander 21mm F1....
Friday, May 29, 2020

Prediction: What New Features of the K-New Would Have?

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Presuming that they have the same APS-C sensor , and then going through the specs of that Sony sensor and then the set of features of the X-...

Yaotomi's YouTube Tests of the D FA* 85

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Thursday, May 28, 2020

Comparing the Optics of the Contemporary Giant 85mm Lenses

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1. Pentax DFA 85/1.4: 12 elements in 10 groups, 1255g (without hood), 82mm filter thread 2. Canon RF 85/1.2: 12 elements in 10 groups...

D FA* 85 Official Special Site

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Development Story:  http://www.ricoh-imaging.co.jp/english/products/star_lens/special/sp_dfa85-14/interview/ Practical examples by three J...
Wednesday, May 27, 2020

Trick: Installing Pentax Digital Camera Utility Without the Software CD

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Step 1: Find an USB drive; Step 2: Download the Digital Camera Utility "software updater" from the below official link: http:/...

D FA* 85 Weight and Price

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According to the latest post by  Nokishita @ Twitter , the new lens weighs 1255g and will be sold at a price of 248,000 Japanese Yens includ...